Elevator.



J. H. MICHENER JR.

ELEVATOR.

APPLICATION FILED SEPT. 4, 1909.

Patented NOV. 28, 1911.

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ELEVATOR. v APPLIOIATION FILED SEPT. 4 1909. I

1,010,297. Patented 0 v. 28, 1911.

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J. H. MIGHENER, JR.

ELEVATOR.

APPLICATION FILED SEPT. 4, 1909.

Patented Nov. 28,1911.

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ELEVTOR. APPLICATION FILED-SEPT. 4, 1909.

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Patented Nov. 28, 1911.

J. H. MIGHBNER, JR- ELEVATOR.

I APPLIGATION FILED SEPT. 4, 1909. 1,010,291 Patented N0 v.28,1911.

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' cmwe UNITED STATES PATENT oEEmE.

JOHN H. v11/111CI-HilNIIilR, 5-3., OF NEW YORK, N. Y., 'ASSIGNOR TOMICHENER- STOWAGE COMPANY, OF NEW YORK, N. Y., 'A CORPORATION OF NEWYORK.

ELEVATOR.

T 0 all whom it may concern:

Be it known that I, JOHN H. MICHENER, Jr., a citizen of the UnitedStates, and a resident of New York, in the county of New York and Stateof New York, have invented certain new and useful Improvements inElevators, of which the following is a specification.

This invention relates to elevators and particularly to that classthereof, portable or otherwise comprising blades or buckets on anendless carrier adapted for raising bulk material such as coal, grainand the like.

The present invention has been developed particularly with reference toadaptability to raising coal from barges to the coaling ports ofshipsbut it is obvious that it is equally adapted for handling a largevariety of bulk material and while I have illustrated and described myimprovements in their particular adaptability to the handling of coal Ido not restrict my invention to such narrow use.

The object of my improvements is to furnish means simple in constructionand action, mobile in adaptability and efficient in use for raising anddischarging bulk material.

In the drawings accompanying this specification I have illustrated oneembodiment and which may be-the preferred embodiment of my improvements.Therein Figure 1 is a sectional side elevation of my apparatus with thetelescopic member retracted.

" Fig. 2 is a similar View to that of Fig. 1 but with the telescopicmember extended. Fig. 3 is a side elevation on an enlarged scale of theupper end of my apparatus. Fig. 4 is a sectional side elevation on thesame scale as Fig. 3, of the lower end of my apparatus. Fig. 5 is a rearside View of a detail, on a still larger scale, of a locking device forthe telescopic member. Fig. 6 is an end view corresponding with Fig. 5.Fig. 7 is a cross sectional view on line 7, 7 of Fig. 4. Fig. 8

is an end elevation corresponding with Fig.

into the coal port of a ship. Fig. 12 is a rear elevation illustratingmeans for operatsaid motor 15.

Specification of Letters Patent. Pgptenbed Nov, 28, 1911.

Application filed September 4, 1909. Serial No. 516,291.

. My improvements comprise in general a main member 2, a telescopicmember 3 slidable therein, an endless chain 4 carrying buckets 6, saidchain being supported on sheaves or sprockets 80, 90, 10 and 11 in mainframe 2 and 12, 13 in telescopic member 3. Said sheaves of Irain frame2-and telescopic member 3 are so located relative to each other as tomaintain an even length or tension on chain 4 irrespective of therelative positions of said members 2, 3. Power for driving theapparatus'is preferably installed in the upper part of main member 2 andmay comprise a motor 15 or other suitable means. Electric wires 32 fromsome suitable source of power, not shown, lead to starting box 33conveniently located on the outside of frame 2 (Fig. 11). From thisstarting box wires, not shown, may lead to Motor 15 is illustrated asprovided with worm 16 engaging worm gear 17 on cross shaft 19 (see Figs.1, 2, 9 and 10). On the outboard left hand end (Fig. 10) of shaft 19 isloosely mounted, sprocket 20. Said sprocket is connected to and drivessprocket 21 through chain 22. Sprocket 20 has clutchmember 201 formedthereon for engagement with clutch member 202 slidably mounted on shaft19 and key 190 therein (Fig. 3). Clutch member 202 may be thrown intoand out of engagement with sprocket clutch member 201 by means of asuitable lever not shown, through rod 24 and bell crank yoke 25.

Referring now more in detail to the construction of my apparatus, Whilein my general description I have mentioned only one endless chain 4. Ipreferably use two such chains 4 and 5 between which I support blades orbuckets 6, (Figs. 7- and. 8). While said blades 6 may be of any one of avariety of cross sections I preferably bend their edges forward in thedirection of their travel, Fig. 4, to increase their carrying capacity.

Main member 2 is of rectangular boxlike form having a lower open end forthe free movement in and out thereof of telescopic member 3. At itsupper end main member 2 has an overhangir'fi g' portion 200 in which vis supported shaft801 carrying sprockets 8 and 80 for chains 5 and 4respectively. Said overhanging portion 200 also provides discharge port203 for the material lifted by' blades 6. Said main member 2 has rails26" (Fig. 7) for guiding engagement with rolls 27 of telescopic member3,and rolls 28 at its lower end for guiding engagement with frames 30 ofsaid telescopic member 3. By these means said telescopic member issuitably supported for free in and out movement in main frame 2. Theseveral sheaves of main member 2 and of telescopic member 3 arerelatively so arranged as. to maintain the principal runs of chain as40, 41, 42, 43 ofmaintained at uniform tension and in operable positionon their several sprockets. Telescopic member 3 is provided with a flooror pan 31 over which the coal is scraped upwardly onto floor 210 of mainmember 2 and thence upwardly and out through port 203. Sheaves 13, 14 atthe lower end of telescopic member 3 are supported on inreaching studs130, 140 respectively so as'to allow freedom for .coal therebetween.

Said sheaves are provided with toothed disks 131, 141 respectively forloosening up the mass of coal to allow freer access of blades 6 thereto.

For lifting telescopic member 3 from its outward position (Fig. 2) toits inward p0- sition ig. 1) I employ the following means. Pivoted at 34in member 3 (Fig. 4) is shoe 35 for engagement with the upper face oflower run 43 of chain 4. The lower face of said run 43 rides on guide16. Cam lock 37 is pivoted at 36 in member 3 above said shoe 35 and isoperable by means of lever 38 thereon to clamp run 43 of chain 4 betweenshoe 35 and guide 16. When so clamped, run 43 of chain 4 in its upwardmovement carries telescopic member 3 therewith Upon releasing lever 38cam 37 is retur to its inoperative position by means of spring 39 of arm93 of said lever 38. For holding. said telescopic member 3 againstoutward movement relative to member 2, from the position for instance ofFig.

1 to thatof Fig. 2, I provide an automatic catch shown'in detail in Fis. 5 and 6, and more fully in relation to sai frames 2 and 3 in Fig. 4.Therein toggle arms 62, 63 are pivoted at 620, 630 respectively in nose64 of frame 2. The free ends of said toggle arms 62, 63. are positionedand adapted for engagement with upper and lower side rails 30, 30 oftelescopic member 3. Said arms 62, 63 are urged to engagement with saidrails 30, 30-by meanslof spring 67 in coac: tion with rods 68, 69pivotally connected with said arms. Arms 62, 63 maybe moved to theirinoperative positions, shown in dot' .To provide for this contingency Ifurnish table 81 extending entirely across within member 2 and havingend 82 thereof reach: ing around shaft 801 of sprockets 8 and 80. Saidtable is slotted at 84, 85 to admit said sprockets. At 83 said,tablereaches around sprocket shaft 92.

For conveniently handling and adjusting my improved apparatus I haveprovided severaldevices which I will now proceed ,to describe. Forhoisting the apparatus into position I have mounted a winding drum 50 onshaft 51 in the upper part of member 2 and parallel wit-hworm gear shaft19. On said shaft 19 is loosely mounted sprocket 56 having clutchmember, 57 thereof for engagement with clutch member '58 slidablymounted on shaft 19 and key 59 thereof. Shaft 51 has sprocket 52 fixedthereon and is connected to and driven from sprocket 56 by chain 54.Clutch member 58v on shaft 19 may be operated in the usual way by levermechanism indicated in a general way by 60. To prevent rotation of drum50, When. I

clutch 57, 58 is disengaged, I provide ratchet 76 fixed on shaft 51 andpawl 77 pivotally mounted on bracket 78 of frame 2 for engagement withsaid ratchet. Drum 50 is provided with friction clutch mechanismindicated at 53, slidably mounted on shaft 51 and key 55 therein. Saidfriction clutch mechanism may be operated in the usual-way by levermechanism indicated'in' ageneral way by 65. The operating levers ofmechanism 60 and 65 are Ibcatedlon the outside of frame 2 convenientlynear the starting box 33 of motor 15. Rope 45 of winding drum 50 passesout of frame 2 through slot 44 (Fig. 10) and thence over suitable blocksas-46 (Fig. 11) one of which, not shown, is

Concentric with drum shaft 51 and at each side of frame 2, I pivotallyattach arms-47, i

ably A shaped having two feet 660, 660 forengagement with the shipsside. Said struts fastened atza proper height to ship 100.-

of frame 2 from ship 100 I provide strut 70 supported in box 74 p-ivotedon axial .shaft 720 of pinion 72 on the side of frame 2 (Fig. 11). Saidstrut 70 is provided with teeth 71 for engagement with the teeth of.pinion 72. Said pinion may be actuated by the usual crank 73. Saidcrank is provided with a stop pin 740 for engagement with block 74 tohold said crank against turningafter strut 70 has been set in a desiredposition. Strut 70 when not engaged may be removed or folded up againstthe side of frame 2. A chute 86 pivotally supported on the projectingends of shaft 801 may be provided to lead the coal from port 203 ofmember 2 to hopper 101 of ship 100.

'The operation of my improved mechanism is as follows: Assuming themachine to be lying on its back with overhanging portion 200 pointingupwardly and with telescopic member 3 retracted, block 46 is hooked intothe eye provided therefor and rope attached to drum 50 (Figs. 10 and11). Clutch member 202 being out of en-- gagement with clutch member201, clutch member 58 being in engagement with clutch member 57, andclutch 53 being in engagement, motor 15 is started. This, through wormand gear 16, 17 respectively, sprocket 56, chain 54 and sprocket 52,drives shaft 51 and drum 50 thereon. Whereupon rope 45 is wound ontosaid drum and the head end of the machine lifted until hook 49, one

end of which is engaged with eye 61 on ship 100, is hooked'into bail478. Motor 15 is now stopped and struts 66, 66 adjusted against theships side. Then clutch 53 is chains.

pivotally about shaft 51 as an axis. Strut' disengaged, rope 45 slackedand the weight of the machine sustained by hook 49. Clutch 53 may now bereturned to engagement and clutch 57, 58 released from engagementpreparatory to starting conveyer The machine is then free to swing 70 isthen adjusted against the ships side and by means of crank 73, pinion.72 and rack teeth 71, the lower end of the machine is swung outwardly inposition over the hatchway 87 of coal barge 88. Thereupon hand lever 79is moved toward its dotted position (Fig. 5) and telescopic member 3 isallowed to descend for engagement with the coal in barge 88 (Fig. 11).By proper manipulation of said lever 79 governing toggle arms 62, 63,member3 may be kept under full control and lowered as slowly as desired.When said telescopic member 3 has been lowered to its Working position Ipreferably throw lever 79 fully to its dotted position (Fig. 5) wherebytoggle arms 62, 63 are held in inoperative. position. Clutch .end ofsaid member.

202, 201 is thrown into engagement and motor 15 started. 'Whereuponthrough sprocket 20, chain 22 and sprocket 21, chains 4, 5 and buckets6, 6 therebetween are started moving in the direction oftheir sevmainmember 2 and thus outward through port 203 of overhanging port-ion 200.The coal then falls through chute 86 into hopper 101 and thence throughthe ships port hole to the bunker. As the coal is removed from the bargeby the machine telescopic member 3 automatically sinks its nose bygravity deeper and deeper into the coal in the barge thereby alwaysworking at 'high eificiency. Also while said telescopic member 3 is thusmov ing outwardly from main member 2, chains 4, 5 constantly maintaintheir working rela tion to their supporting sprockets, and are keptconstantly at a uniform tension by my improved arrangement, fullydescribed above herein. When telescopic member 3 has dug its way to thebottom of the barge or to the extent of its travel, toggle arms 62, 63are thrown into their operative posit-ions by means of lever 79 andlever 38 is operated to cause cam 37 to press shoe 35 against run 43 ofthe conveyer chain; said chain is thereby clamped to member 3 and whichmember is thereupon retracted by said chain to any desired height. Lever38 is thereupon released, chain run 43 freed and member 3 is preventedfromfalling by toggle arms 62, 63. Barge 88 may now be shiftedlengthwise or my machine shifted crosswise, by means of strut 70, topresent a fresh portion of the coal pile. Toggle arms 62, 63 arethereupon released and member 3 is lowered to its work. Lever 79 isthereupon thrown fully to its dotted position of Fig.

A highly useful and novel feature of my improved apparatus is itsability to auto matically retract member 3 when overloaded or congested.It frequently happens that when said member 3 has dug its way downwardlyinto the coal pile that the walls of the cavity thus made cave inandprecipitate a mass of coal onto and about the lower This immediatelycauses more or less'congestion atsaid lower end, particularly wherechains 4, 5 pass onto sheaves 13, 14, or tends to jam the en trancewhere the conveyer blades enter over floor 31. This jamming acts exactlyas does clamping shoe 35'and causes the conveyer to pick up said member3 and lift it free of the congestion, whereupon, toggle arms 62, 63being in inoperative position, telescopic member 3 slides downwardly andblades 6, 6 proceed upwardly with their loads.

Another phase of the automatic retracting feature of my improvedapparatus is shown in Figs. 13, 14 and 15. In Fig. 13 the telescopicmember is shown with its lower end more deeply immersed in the coal pilethan shown, for instance, in Fig; 11,

I and with that portion of the coal at 120 and thereby freed from saidcoal pile to ,vented from returning downwardly after pass upwardly withrun 400 of the conveyer chain. Then if the caved in portion 120 be ofsufficient height the succeeding buckets 601, 602 will successivelyengage the coal pile as wall 250 withdraws upwardly with telescopicmember 3 thereby allowing the coal to fall about said buckets, Fig. 14.-

Said telescopic member 3 then continuingv its upward movement, will turnbuckets 601, 602 about sprocket 13 until itfrees itself fully from saidcoal pile, Fig. 1-5 and will then again proceedto dig its way.downwardly. If desired, at the time said telescopic member starts toretract from the caved in coal pile, lever 79 may-be thrown from itsdotted line position to its full line position, Fig. 5, and saidtelescopic member will therefore be automatically prehaving freed itselffrom the pile, Fig. 15,

until the operator chooses to release it forsuch downward movement. Thesuccessive positions of the telescopic member relative to the congestedblades, as 600, 601, 602 and 603, may be easily read against horizontalguide line A A. Said automatic retracting ability of my improvedapparatus is due to the fact that said telescopic member is mounted toslide upwardly in the main member without encumbrance and thereforefollows the path of least resistance when an obstruction occurs.

When the barge has been unloaded toggle arms 62, 63 are thrown intooperative positions,-clamp, shoe 35 thrown into action and member 3retracted to its inward position.

'Motor 15 is then stopped, clutch 201, 202 disengaged,-clutch 57 58thrown into engagement and the motor again started. This causes rope tobe wound onto drum thus hoisting the machine free of hook 49. Strut maythen be removed and the machine lowered and stowed for future use.

I claim: I v

1. A portable elevator comprising a main member, a telescopic memberslidable therein, an endless conveyer supportedjfor movemeans forpreventing-outward movement of the telescopic member relative to themain member and means for engaging and disengaging said automatic meansoutward movement.-

3. A portable elevator comprising a main member, a telescopic memberslidable therein, an endless conve'yer supported for movement within themain member and the telescopic member, means for actuating the conveyerand means for locking the conveyer to the telescopic member forretracting said telescopic member within said main member.

4. A portable elevator comprising a main member, a telescopic memberslidable therein, an endless conveye-r supported within the main memberand the telescopic member, means for actuating the conveyer, means forretracting the telescopic member and automatic means for preventingoutward movefor preventing ment of the telescopic member relative to vthe main member.

5. A portable elevator comprising a main member, a telescopic memberslidable therein, an endlessconveyer supported'within the main memberand the telescopic member, means for actuating the conveyer andautomatic means for preventing outward movement of the telescopic memberrelative to the main members 6. A portable elevator including incombination, a main member, a telescopic member slidable therein, anendless conv'eyer having blades thereon, supported for movement withinthe main member and the telescopic member, means carried by thetelescopic member for automaticallymaintaining said conveyer at uniformtension, said telescopic member mounted for free upward movement in saidmain member to permit said telescopic member toretract automaticallywhen a *downwardly moving blade therein encounters a resistance inexcess of the weight of said telescopic member, automatic means forpreventing outward movement of said telescopic member relative to saidmain 1 member, when said downwardly moving blade is freed from saidexcess resistance and means for actuating-the conveyer.

7. Aportable elevator including in combination, a .main member, atelescopic member slidable therein, an endless conveyer having bladesthereon, supported for movement member, means carried by the telescopicJwithin'themainmember and the telescopic .1'1...

iniseid main -imember to permit said tele 5 scopic memberio retractautomatically. when a! downwardl moving blade, therein en'- counters ares stance in excess of the weight. of saidtele'sc'o'p c member,automatlc means- J for'preventin'gfoutward movement. of said 10.telescopic lmemb'er relative to said main mejniber when said downwardlymoving 'blztde is freed from said excess resistance, means forlengagingand disengaging said automatic mee'psfor preventing said outwardmovement and means for actuating the conveyer. c 5 1,8. A portableelevatorco'mprising a main member, a) telescopic member slidablethereiii, an endless conveyer comprising four paraljlel runs supportedon "sprockets revol'ubly fixed in opposite ends of said telescopic-member and on other. sprocket-s revolubly fixed in opposite ends of themain member,

manually operable means on the telescopicmember for locking said-'conveyer to said telescopic memberfor retracting the tele scopiomember'and meansfor actuating the conve er. p f

9. portable'eleyator comprisin a'mainV; member, a telescopic memberslidab e there-1 in, an endlessconveyer comprising fourlparallelrunssizpported'on sprockets revolubly fixed in opposite ends of saidtelescopic member' and on other sprockets revolubly fixed in oppositeends of the main member, means fo'rgripping the oonveyer to thetelescopic member for retractingthe telescopic member and means foractuating the ,'conveyer. I Signed this 13th day of August 1909 100-fore twosubs'cribing wltnesses.

Witnesses: CHAS-W. LA RUE, WILLIAM J. Comma.

'JOHN H. MICHENER, n, I

